The "modern" wheel weight is actually one of Harley's inventions, at least they are the ones that got the patent for it. It is attributed to Ed Kieckbusch, I think he was the one that took over the engineering department after the original Bill Harley. Anyway, he was granted the patent for it in January 1942 so if you have one of this type on a bike any older than that it would probably be wrong. It must have been a pet trivia thing of the judge that spotted it and clipped you for that.
if I'm lucky I should be able to get the page from the patent book to post here.